<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring4-4.dtd">
<html lang="en"  xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>text</title>
</head>
<body>
    <h1 th:text="${showtext}"></h1>
    <h1 th:utext="${showtext}"></h1>



    <span th:if="${19>20}">
        为假
    </span>
<span th:unless="${19>20}">
    为真
</span>
<img src="image/2.jpeg" width="200px" height="200px"/>
<img width="200px" height="200px" th:src="@{image/2.jpeg}"/>
<a href="hello">链接<img src="image/2.jpeg" width="200px" height="200px"/></a>

</body>

</html>